Top Software Engineer Jobs in Paris

Join a team of engineers to work on a complex codebase while utilizing MongoDB, Node.js, and Vue.js. Responsibilities include developing and improving functionalities, collaborating within squads, and onboarding new engineers.

Build and scale distributed data ingestion services for Algolia’s Connectors Platform. Responsibilities include improving reliability, scalability, throughput, testing, observability, and performance; operating high-traffic production systems; and mentoring teammates. The role works with Go, Kubernetes, Terraform, and Google Cloud to support data connectivity, transformation, and AI enrichment pipelines.

Build and ship backend features for enterprise Coder deployments, including database migrations, observability, reporting, auditing, security, scalability, and reliability improvements. Investigate production issues, resolve operator problems, document designs, participate in code reviews and RFC discussions, and join on-call rotations. The role requires professional Go development, concurrency knowledge, SQL expertise, debugging ability, and strong communication.

Lead the Business Rules squad for CAYZN, owning the architecture and development of a scalable rules engine, including its language, parser, evaluation engine, and user interface. Drive technical decisions, performance, monitoring, incident follow-up, roadmap planning, code reviews, mentoring, and hands-on full-stack development. Collaborate with product, data science, and platform teams to deliver reliable revenue-management features for transportation clients.

Build, optimize, and scale real-time software processing high-throughput 3D LiDAR data. Collaborate with perception algorithm teams to deliver production-ready systems, deploy and scale pipelines using Kubernetes and cloud services, optimize performance across edge and containerized environments, develop Python tooling and tests, integrate GenAI capabilities, and own technical work from architecture through production deployment.

Build and operate backend pricing systems for real energy contracts. Responsibilities include designing the Pricing API, consolidating pricing logic, improving quote speed, implementing error handling and observability, creating alerting, explaining pricing failures, and supporting live incidents. The role requires production Python backend experience, FastAPI, SQL, data-heavy systems, end-to-end project ownership, and AI-assisted development workflows.

Design and develop Marketplace platform features, maintain APIs, build OS image and packaging tools, automate image and container manufacturing, and manage application artifacts. Support external publishers, ensure artifact security through CI/CD and scanning, contribute to architecture, and collaborate with product and engineering teams on innovative technical initiatives.

Develop and enhance MetaMask social and multi-chain experiences across Portfolio, browser extension, and mobile platforms. Collaborate across teams on complex projects, mentor engineers, and build scalable full-stack applications using React, React Native, modern JavaScript, blockchain technologies, APIs, testing, and continuous integration. Ensure cross-platform compatibility and apply web security best practices.

Develop and own real-time gimbal control and GNC software for custom microcontrollers and embedded Linux platforms. Build diagnostic and PC tooling, analyze telemetry, support calibration and performance investigations, and lead flight-test preparation and field evaluations. Collaborate with software, GNC, mechanical, hardware, and industrialization teams while defining robust software architecture and mentoring junior engineers.

Build and evolve Rerun’s open-source viewer, cross-language SDKs, and integrations with Rerun Hub. Develop high-performance interfaces for large-scale multimodal data, optimize workflows across desktop and web, make full-stack architecture decisions, and collaborate with backend, Hub, design, customers, and the open-source community. The role involves UI development, rendering, data handling, infrastructure, real-time applications, visualization, and performance optimization.

As a Software Engineer, you'll design and develop software solutions, solve technical problems, lead projects, and collaborate with product and operations teams.

Develop and optimize software solutions for industrial additive manufacturing in an agile team. Responsibilities include designing algorithms, data structures, and software subsystems; debugging complex issues; benchmarking and improving performance, stability, efficiency, and scalability; and contributing to software quality and documentation. The role uses Vue.js, TypeScript, Python, C++, MongoDB, Docker, and automated development tools.

Own and productionize localization, mapping, calibration, and state-estimation systems for autonomous ground vehicles operating at active airports. Responsibilities include sensor fusion, 3D mapping, calibration, online validation, diagnostics, regression testing, deployment, and safety monitoring. The role provides technical leadership across perception, planning, and platform teams while advancing autonomous operations toward driverless capability.

Owns field deployment of defense software by integrating platforms with customer systems, developing connectors, configuring and customizing applications, managing on-premises releases, troubleshooting operational issues, and documenting deployments. Works directly with customer technical teams, validates end-to-end data flows, and feeds reusable integration needs back to the core product team. The role requires substantial domestic and international travel and autonomous work in mission-critical environments.

Build and scale Base360.ai’s short-term rental platform, including customer-facing applications, APIs, automation engines, AI-powered workflows, third-party integrations, and cloud infrastructure. Develop systems for reservations, pricing, payments, guest communication, property operations, reporting, and financial workflows. Own projects end to end, make architectural decisions, ensure reliability, and deliver scalable products in a remote-first startup environment.

Lead and coach a playable ads development team while remaining hands-on in producing and iterating playable creatives. Oversee workflows, tooling, and best practices; innovate ad formats; analyze competitor ads and performance data; collaborate with growth and creative teams; support rollout across game franchises; and shape team standards and processes.

Lead architecture and code quality for payment plugins across six major e-commerce platforms. Establish PHP patterns, testing and linting standards, conduct code reviews, improve test coverage, harmonize cross-platform conventions, and mentor intermediate engineers. The role combines hands-on backend development, technical direction, continuous improvement, and collaboration with AI development tools. It is a permanent position based in Paris or remotely from Metropolitan France.

Design and develop Python backend APIs and payment infrastructure serving merchants and consumers across Europe. Build secure, maintainable, high-performance systems, evolve technical architecture with Product and technology leaders, and lead incident response and performance improvements. The role requires ownership of reliability at scale within a regulated fintech environment.

Design, implement, and review high-performance data infrastructure services and clients. Apply coding, testing, and system design best practices; collaborate with stakeholders to address technical and business needs; and investigate, debug, and resolve system issues. Work with large-scale data systems involving real-time publish-subscribe architecture, sharded databases, caching, multithreading, asynchronous I/O, and big data technologies.

Build and ship high-traffic frontend features for Sorare’s fantasy sports platform. Responsibilities include architecting web experiences, driving projects from inception through launch, collaborating with product, design, and backend teams, optimizing performance and mobile usability, measuring outcomes, and contributing to web strategy. The role requires strong ownership, pragmatic decision-making, rapid iteration, and collaboration in English and French.

Designs and implements behavior planning algorithms for autonomous vehicles operating in structured, low-speed airport environments. Responsibilities include developing C++ and Python software, modeling multi-agent interactions, implementing decision-making and path-planning methods, testing in simulation and real-world scenarios, optimizing system performance, and collaborating with autonomy and engineering teams. The role requires expertise in behavior planning, probabilistic models, real-time navigation, debugging, profiling, and scalable software architecture.

Lead development of C12’s quantum measurement software framework. Design architectures for instrument control, high-throughput data storage, and measurement orchestration; collaborate with research and engineering teams to translate experimental requirements into scalable software. Own the software lifecycle, including code reviews, CI/CD, automated testing, security, and maintainability. Mentor junior engineers and promote strong software development practices in a collaborative quantum computing environment.

As a Senior Backend Software Engineer, you'll enhance Vibe's bidding and pacing systems, lead the distribution of system knowledge within the team, and innovate within the audience streaming advertising domain, ultimately driving measurable improvements in performance metrics.

As a Software Engineer Intern, you'll enhance API performance, support R&D tools, maintain backend services, and write clean Python code.

As a Software Engineer, you'll develop innovative projects using Java and various frontend technologies, manage cloud deployments, and improve your skills through training.